Improvement in machines for sapping timber for shingles



IlNrrEn STATES PATENT OEEICEo GEORGE M. HINKLEY, OF MILVAUKEE, WISCONSIN.

IMPROVEMENT IN MACHINES FOR SAPPING TIMBER FOR SHINGLES.

Specification forming part of Letters Patent No. 113,666, dated April 1I, 1871.

To all whom t may concern).-

Beit known that I, GEORGE M. HINKLEY, of Milwaukee, in the county of Milwaukee, in the State of Visconsin, have invented certain Improvements in Sapping-Machines for Sapping Shingle-Timber, &c. of which the following is a specification.

My invention is for the purpose of sapping cuts of logs for various purposes, and is arranged so as to cut the sap from the cuts of logs by having the cuts revolve, and the sapper made of joints, so that the knives shall cut in rotation as the cutting-head revolves, and the cutting-head is on a movable carriage, which can be moved up to the revolving` cutting-head just far enough to take off the sap, varying the cutting-head according to the conguration of the cut or thickness of the sap.

In the drawings forming part of this specification, Figure l is a perspective view. Fig. 2 is a top view of the machine. Fig. 3 is a top view of the cutting-cylinder. Fig. 4L is a section of the cylinder.

A is the frame of the machine; B, revolving head with spurs in it, moving in boxes and shalt, and on which the cutis to be placed to besapped; C, the carriage on which this head B is hung; D, racks in this carriage; E, upright'shaft, with pinion F on its lower end to mesh into the racks to carry the carriage up or back, as it may be meshed into either ratchet; G, drivingpulley on the top of shaft E; H, step on which shaft E stands, fastened' at one end, and the other attached to a movable lever, I, operated by lever K L, shaft, with a feather in it passing through cog-wheel M on its head, and a plate, N, with spurs in it, to hold the cut on the lower end, O, a hoisting-lever connected to the lower box, I), by link Q and slide It on the shaft L. This slide strikes against a collar and set-screw, S. This arrangement of shaft and its connections is to raise and lower the shaft to hold or release a cut to be sapped. T is a pinion meshing into wheel M; U, cog-wheel on' shaft V, meshing into pinion W on shaft X, on the lower end of which is pulley Y and on the top end pulley Z. a is the frame of the sapping-head b on the shaft cl, with pulley e to drive the sapper on the head of shaft d, working in boxes f in movable frame a, which works on ways g.

Said frame a is moved up and back by means of lever h and the shield t', to keep the chips from flying against the party tending the machine. k is a section of the sapperhead, with knives Zin its ends. This sapper-head is made of sections like 7c, set in the form of a screw, with bow-knives Zin the ends of these sections, so that as the head is pressed up to the cut to be sapped by the lever 7L these knives Z are presented to the cut in rotation. j

The operation of this machine is as follows: The belts from the driving-shaft (not shown) pass onto pulleys Z and e, and abelt from pulley Y to pulley G. These belts put the machine in motion. A cut of a log is placed up endwise on head B, and the pinion Fis set up to left-hand rack, and this rack is moved back to the right point under shaft and head4 L and N, and shaft L, with head N on it, is brought down onto the cut, and the spurs in head N enter the cut and put it in motion. are set on the carriage, so that when pinion F is set in on one side it carries the head B back just under head N, and the pinion runs off of the rack; and when the cut is sapped the pinion F is set up to the other rack, and the head B, with the sapped cut, is thrown back to the place where first started from. The sappinghead b is thrown up toward the cut to be sapped by lever IL, and as it revolves one knife after another cuts the sap from the cut; and as the cut to be sapped turns ver;T slow, the person feeding up the sapper-head can vary it by means of the lever, so as to cut just the amount necessary to take olf all the sap.

I claim as my inventionl. Revolving head B and carriage O, in co1nbination with shaft L, plate N, and hoistinglever O, substantially as and for the purpose described.

2. A sapping-machine made with sappinghead b, in combination with revolving head B, carriage C, shaft L, and lever. O, substantially as and for the purpose described.

3. Movable frame f, ways g, and lever It, in combination with sapping-head b., substantially as and for the purpose described.

GEORGE M. HINKLEY.

Witnesses:

W. M. HOENER, J. B. SMITH.

These racks D 

